Minidoka Dam Modifications

Construct a south gated spillway,  north and south mass concrete dikes, north and south side canal headworks, north and south mass concrete overflow spillways, and modify the existing north gated spillway.  The spillway dike is 2,000 feet long, the 3 radial gate structures contain 16 radial gates each 20’ wide and 20’ to 24’ tall.  Demolish the existing overflow spillway and canal headworks; excavate foundations, spillway approach channel, and spillway outlet channel, install government-furnished radial gates, gate hoists, and associated equipment; furnish and install fencing, gates, railing, stairs, and gantry crane and associated rails.

  • Cost: $24,968,807
  • Owner: Bureau of Reclamation (USBR)
  • Designer: USBR
  • Construction Period: 09/2011 – 03/2015